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ADevice.h

Go to the documentation of this file.

/*
CS Senior Project 2003
Team : Leftfield
Project : ModernWarfare
Members :
- Russ Christensen              <rchriste@cs.utah.edu>
- Todd Smith                    <tcsmith@cs.utah.edu>
- Usit Duongsaa                 <duongsaa@cs.utah.edu>
Copyright 2003 Russ Christensen, Usit Duongsaa, and Todd Smith. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 
THIS SOFTWARE IS PROVIDED BY RUSS CHRISTENSEN, USIT DUONGSAA, AND TODD SMITH ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RUSS, USIT, TODD OR OTHER CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef INCLUDE_ADEVICE
#define INCLUDE_ADEVICE

#include "AState.h"

//------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------
inline void device_flushSettings()
{       
        AS.device_vsh = static_cast<DWORD>(-1); //So we can get an all 1's bit pattern
        AS.device_psh = static_cast<DWORD>(-1); //So we can get an all 1'1 bit pattern
        AS.device_ib = NULL;
        for( int i=0; i<MAX_STREAM; i++ )               AS.device_vb[i] = NULL;
        for( int i=0; i<MAX_STATE_TYPE; i++ )   AS.device_renderStates[i] = static_cast<UINT>(-1);
        for( int i=0; i<MAX_TEXTURE; i++ )              AS.device_texture[i] = NULL;
}
//------------------------------------------------------------------------------------
inline void device_setTextureStageState(  DWORD Stage, D3DTEXTURESTAGESTATETYPE Type, DWORD Value )
{
        // direct pass-through for now because I don't think there will be much repetitions/trashing
        AS.pDevice->SetTextureStageState(Stage,Type,Value);
}
//------------------------------------------------------------------------------------
inline void device_setRenderState( D3DRENDERSTATETYPE state, DWORD value )
{
        assert( state>=0 && state<MAX_STATE_TYPE );
        if( AS.device_renderStates[state] != value )
        {
                AS.device_renderStates[state] = value;
                AS.pDevice->SetRenderState( state, value );
        }
}
//------------------------------------------------------------------------------------
inline void device_setVertexShader( DWORD vsh )
{
        if( AS.device_vsh != vsh )
        {
                AS.device_vsh = vsh;
                AS.pDevice->SetVertexShader(vsh);
        }
}
//------------------------------------------------------------------------------------
inline void device_setPixelShader( DWORD psh )
{
        if( AS.device_psh != psh )
        {
                AS.device_psh = psh;
                AS.pDevice->SetPixelShader(psh);
        }
}
//------------------------------------------------------------------------------------
inline void device_setRenderStateBlendMode( int blendMode )
{
        switch(blendMode)
        {

        case BlendModes::NONE:
                device_setRenderState( D3DRS_ALPHABLENDENABLE, false );
                device_setRenderState( D3DRS_ALPHATESTENABLE, FALSE );
                device_setRenderState( D3DRS_ALPHAFUNC, D3DCMP_ALWAYS );
                break;

        case BlendModes::KEY:           
                device_setRenderState( D3DRS_ALPHATESTENABLE, TRUE );
                device_setRenderState( D3DRS_ALPHABLENDENABLE, false );
                device_setRenderState( D3DRS_ALPHAFUNC, D3DCMP_GREATER );
                device_setRenderState( D3DRS_ALPHAREF, 0x0 );
                break;

        case BlendModes::ADD:
                device_setRenderState( D3DRS_ALPHABLENDENABLE, true );
                device_setRenderState( D3DRS_ALPHATESTENABLE, FALSE );
                device_setRenderState( D3DRS_ALPHAFUNC, D3DCMP_ALWAYS );
                device_setRenderState( D3DRS_SRCBLEND,  D3DBLEND_SRCALPHA );
                device_setRenderState( D3DRS_DESTBLEND, D3DBLEND_ONE );
                break;

        case BlendModes::MIX:
                device_setRenderState( D3DRS_ALPHABLENDENABLE, true );
                device_setRenderState( D3DRS_ALPHATESTENABLE, FALSE );
                device_setRenderState( D3DRS_ALPHAFUNC, D3DCMP_ALWAYS );
                device_setRenderState( D3DRS_SRCBLEND,  D3DBLEND_SRCALPHA    );
                device_setRenderState( D3DRS_DESTBLEND, D3DBLEND_INVSRCALPHA );
                break;

        default:
                assert( false && "Invalid blendMode" );
        };
}
//------------------------------------------------------------------------------------
inline void device_setStreamSource( int streamNum, IDirect3DVertexBuffer8* pStreamData, UINT Stride )
{
        assert( streamNum>=0 && streamNum<MAX_STREAM );
        if( AS.device_vb[streamNum] != pStreamData )
        {
                AS.device_vb[streamNum] = pStreamData;
                AS.pDevice->SetStreamSource( streamNum, pStreamData, Stride );
        }
}
//------------------------------------------------------------------------------------
inline void device_setIndexSource( LPDIRECT3DINDEXBUFFER8 pIB )
{
        if( AS.device_ib != pIB )
        {
                AS.device_ib = pIB;
                AS.pDevice->SetIndices( pIB, 0 );
        }
}
//------------------------------------------------------------------------------------
inline void device_setTexture( int stageNo, IDirect3DBaseTexture8 *pTexture )
{
        assert( stageNo>=0 && stageNo<MAX_TEXTURE );
        if( AS.device_texture[stageNo] != pTexture )
        {
                AS.device_texture[stageNo] = pTexture;
                AS.pDevice->SetTexture( stageNo, pTexture );
        }
}
//------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------
//------------------------------------------------------------------------------------

#endif

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